Timeline for What does primary decomposition of (sub) modules mean geometrically?
Current License: CC BY-SA 2.5
6 events
| when toggle format | what | by | license | comment | |
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| Apr 30 at 12:56 | comment | added | Elías Guisado Villalgordo | To give a reference, one can look at EGA IV₂, sections 3.1, 3.2. | |
| Dec 10, 2009 at 8:19 | comment | added | Andrew Critch | @Ho Chung, definitely check out the references I made to The Geometry of Schemes. @Greg, thanks, as usual! In case you're wondering what's up, I want to leave the question open awhile longer until I've had more time to think about it myself, in case someone might mentions something else cool I should know. I haven't forgotten about it :) Cheers, | |
| Dec 7, 2009 at 14:59 | comment | added | Greg Kuperberg | The visualization is easy: The embedded primes are dots on top of the curves drawn in the surface, or curves on top of the surfaces drawn in space. $Spec(A/P_i)$ is a subvariety embedded in the subvariety $Spec(A/P_j)$. | |
| Dec 7, 2009 at 13:38 | comment | added | user709 | Seems like it's not mentioned that any irreducible component arises as $\Spec(A/P_i)$, so I'm adding this remark. Another thing: While minimal primes are in general easier to visualize, it seems really hard to depict embedded primes. Does anyone have good ideas on that? | |
| Dec 7, 2009 at 5:43 | history | edited | Greg Kuperberg | CC BY-SA 2.5 |
added 27 characters in body
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| Dec 7, 2009 at 5:38 | history | answered | Greg Kuperberg | CC BY-SA 2.5 |